Yes, a smaller "Urban" study was conducted right here in Philadelphia. It was similar to the CDC/Kaiser study, but added some "Urban ACE" categories and apparently deleted one of the original categories. I am trying to attach a link to a paper summary and a separate Power Point slide show summary.
http://www.instituteforsafefamilies.org/sites/default/files/isfFile...
http://www.instituteforsafefamilies.org/philadelphia-urban-ace-study